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LangChain vs fractal

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

LangChain compared with fractal
Detail LangChain fractal
What it doesThe open agent platform to own your intelligence Long-term memory for AI agents that organizes itself and corrects itself
StageEstablished MVP
Founded2023 Not given
Based inUS SE
Pricing modelNot given Free
PricingDeveloper plan is free for solo users with up to 5k base traces per month, then pay-as-you-go. Plus plan costs $39/seat/month with 10k base traces included. Enterprise plan offers custom pricing with advanced options. Personal: Free during early access. Unlimited memories, all agents with separate memories, no card required. Enterprise: On request, set up by the team for departmental organization with cross-department sharing and direct support.
Key features
  • Agent observability with step-by-step tracing
  • Agent evaluation and scoring
  • Agent deployment infrastructure
  • Production monitoring with online evaluations
  • Autonomous agent improvement with Engine
  • Secure sandbox execution for agent-generated code
  • LLM Gateway for model call control
  • No-code agent builder Fleet
  • Open source frameworks for agent development
  • Self-correcting memory that updates when facts change
  • Historical memory queries with time-based retrieval
  • Automatic topic organization and hierarchy
  • Separate memory for each agent with controlled sharing
  • Multi-agent support via MCP, REST API, or LangGraph
  • AES-256 encryption at rest and in backups
  • OAuth 2.1 authentication and API key management
  • Data export and deletion capabilities
  • 37 MCP tools with automated verification on every code change
What makes it different
  • Comprehensive platform covering the entire agent development lifecycle from building to monitoring
  • Open source frameworks with options from quick-start to low-level control
  • Built-in observability and evaluation capabilities integrated into the platform
  • Support for long-running autonomous agents with Deep Agents framework
  • Understands what changed, when it was true, and where it belongs - beyond vector database similarity
  • Never contradicts itself by automatically replacing outdated facts
  • Fully GDPR aligned with built-in privacy by design
  • Two-minute integration with Claude, ChatGPT, Cursor and any MCP client
  • Data stays in Europe on AWS eu-north-1 and never used for model training
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)88 +1 (up) since last checkNot checked yet no change since last check
Trust Flow (Majestic)560
Citation Flow (Majestic)640
Referring domains (Majestic)285860

6 details filled in for both companies.

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